Adventures and an epic tier adventure boxed set though? I could eat that up easily. Especially if it came with monsters that AREN'T demons or undead.
You have no idea how much I would love Fey and Aberrations. It would be so much.As an honest question, what's left for Epic after you take out demons or undead?
I can only think of other immortals (angels and devils), fey and aberrations. Otherwise you need to get 'crazy' and mess around with parallel universes and such, don't you?
Dragons? Primordials? Other Elementals? Or perhaps something new, like Swordwings?
You have no idea how much I would love Fey and Aberrations. It would be so much.
The beautiful thing about the Feywild (Also Shadowfell) is they are really close to the mortal world. It's very easy to implement them from level 1 in a campaign. Making them significant in an ongoing campaign to level 30 is impossible: There isn't enough worthwhile to use at that point. It's also the case that because the Feywild is so close to the mortal world, it's really much easier to explain and have them want to act with the mortal world more. Plus they are arguably a lot more interesting in this interaction than Demons, who are somewhat single minded by fluff.The fey are as scary as anything else in D&D, though they should REALLY expand on the feywild. There is a pretty massive amount of room for epic monsters if things are simply expanded on. It does, however, tend to move further away from the World, though planar threats can always show up in your back yard.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.